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PCI: rockchip-ep: Use a macro to define EP controller .align feature

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Introduce the macro ROCKCHIP_PCIE_AT_SIZE_ALIGN to initialize the .align
field of the controller epc_features structure to 256. This is defined
as a shift using the macro ROCKCHIP_PCIE_AT_MIN_NUM_BITS (to avoid
using the "magic" value 8 directly).

Link: https://lore.kernel.org/r/20241017015849.190271-3-dlemoal@kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
Damien Le Moal 2024-10-17 10:58:37 +09:00 committed by Bjorn Helgaas
parent 64f093c4d9
commit 739e25f51a
2 changed files with 2 additions and 1 deletions
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2
drivers/pci/controller/pcie-rockchip-ep.c
View File

@ -449,7 +449,7 @@ static const struct pci_epc_features rockchip_pcie_epc_features = {
.linkup_notifier = false,
.msi_capable = true,
.msix_capable = false,
.align = 256,
.align = ROCKCHIP_PCIE_AT_SIZE_ALIGN,
};
static const struct pci_epc_features*

1
drivers/pci/controller/pcie-rockchip.h
View File

@ -248,6 +248,7 @@
#define ROCKCHIP_PCIE_AT_MIN_NUM_BITS 8
#define ROCKCHIP_PCIE_AT_MAX_NUM_BITS 20
#define ROCKCHIP_PCIE_AT_SIZE_ALIGN (1UL << ROCKCHIP_PCIE_AT_MIN_NUM_BITS)
#define ROCKCHIP_PCIE_AT_IB_EP_FUNC_BAR_ADDR0(fn, bar) \
(PCIE_CORE_AXI_CONF_BASE + 0x0828 + (fn) * 0x0040 + (bar) * 0x0008)